the good news is the fbi has identified several suspects involved in the attack. the bad news is, libya has no one in custody and some of the people we identified may have even fled benghazi according to the "new york times." so much for the key players. as for the fringe players, an egyptian militant has been arrested in cairo with possible ties to the attack, but he hasn't been questioned by the u.s. and a tunisian man was arrested in october but he isn't considered a main suspect at this point, either. without a clear lead and without a whole lot of cooperation from the libyan government either, the fbi has now resorted to asking for tips on facebook and twitter. facebook and twitter in a quadruple murder case. "outfront" tonight, senator johnny isaacson. senator, thanks for being with us. it is never easy doing an investigation of this ilk on someone else's sovereign turf, but does this stand out? >> it does to me. your point is well taken. if they're looking to twitter and facebook three months later, they should have been on the ground within hours after the